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Derivative Financial Instruments - Balance Sheet Location of GM Financial Unsecured Debt (Details) - Fair Value Hedges - GM Financial - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	$ 34,433	$ 33,551
Cumulative Amount of Fair Value Hedging Adjustments	1,158	1,029
Cumulative fair value adjustment on discontinued hedging relationships	865	872
Short-term unsecured debt
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	4,283	3,508
Cumulative Amount of Fair Value Hedging Adjustments	(33)	(8)
Long-term unsecured debt
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	30,150	30,043
Cumulative Amount of Fair Value Hedging Adjustments	$ 1,191	$ 1,037

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- Definition

Derivative Liabilities, Fair Value Adjustment on Discontinued Hedging Relationships

+ References

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- Definition

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+ References

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- Definition

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- Definition

Amount of liability hedged in fair value hedging relationship.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4EE
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4EE

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